/Engine/Source/Runtime/Core/Public/Templates/Tuple.h
template<typename... OtherTypes, decltype([UE::Core::Private::Tuple::AssignableConceptCheck](API\Runtime\Core\Templates\UE__Core__Private__Tuple__Assign-)< Types &... >(DeclVal< const OtherTypes & >()...))*> [TTuple](API\Runtime\Core\Misc\TTuple) & operator= ( const [TTuple](API\Runtime\Core\Misc\TTuple)< OtherTypes... > & Other )